This note summarizes results concerning local Gröbner fans. Any Gröbner fan of an ideal in a power series ring, or in an analytic or formal differential operator ring, is found to be a polyhedral fan. We also compare the notions of global and local Gröbner fans, and discuss applications of our results. To cite this article: R. Bahloul, N. Takayama, C. R. Acad. Sci. Paris, Ser. I 340 (2005).

We construct one-parameter complex analytic families whose special fibers are complete toric varieties. Under some assumptions, the general fibers of these families also become toric varieties and we can explicitly describe the corresponding fans from the data of the fans corresponding to the special fibers. Using these families, we give a deformation family for a certain toric weakened Fano 3-...

J.F. Smith Animal Sciences and Industry Kansas State University When reducing heat stress in dairy herds, fans are used to enhance the evaporation of moisture from a cow’s back. Fan selection should be based on performance rather than horsepower and diameter. Certified lab studies of similar size fans show a 50 percent difference in airflow rate per unit of input energy. Maintenance is importan...

Heart Rate and Body Temperature Responses to ExtremeHeat andHumidityWith andWithout Electric Fans Patz et al1 described the projected effects of more prolonged and severe heat waves on human health. A simple, low-cost cooling device is an electric fan. A Cochrane review2 concluded“noevidencecurrentlyexists supportingor refuting the use of electric fans during heatwaves” formortality andmorbidit...

The objective of the current study was to determine how predetermined factors contribute to a spectator's overall perceptions of a new college football stadium. It was predicted that fans who were highly identified with the SIU football team would have a more positive perception of the new stadium than low identified fans. Second, individuals' considering themselves to be sports fans would perc...

Increasing of head rise (HR) and decreasing of head loss (HL), simultaneously, are important purpose in the design of different types of fans. Therefore, multi-objective optimization process is more applicable for the design of such turbo machines. In the present study, multi-objective optimization of Forward-Curved (FC) blades centrifugal fans is performed at three steps. At the first step, He...

There are several industrial methods for tunnel ventilation system design. In particular, for tunnels where axial flow fans are applicable, there are specialized computer programs that calculate the various pressure drops that consider wall friction and local losses due to signs and appurtenances, and considering vehicle emission factors based on up-hill or down-hill conditions, determine the n...